Die-separating means



SepL 29, 1925. R. L. wlLcox DIE SEPARATING limbs Filed Oct. 3; 1921 Patented Sept. 29, 1925.

UNITED STATES PATENT OFFICE.

RICHARD LESTER WILCOX, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATERBURY BARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY, CON- NECTICUT, A CORPORATION OF CONNECTICUT.

DIE-SEPARATING MEANS.

Application filed. October 31, 1921. Serial No. 511,801.

To allwhom it may concern.-

Be it known that I, RICHARD Lns'rnn WIL- cox, a citizen of the United States, residing at WVaterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Die- .Separating Means, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to die separating means, its principal object being to provide simple mechanism for separating the dies of an open die header or upsetting machine.

Among other aims and objects of my invention may be recited the provision of a device of the character mentioned with a view to compactness and in which the number of parts are few, the construction simple, the cost of production small, and efficiency and operation high. a

The improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings, in connection with the description hereinafter contained, and wherein an embodiment of the invention is disclosed for the purpose of imparting a full understanding of the same.

Having drawings and in connection with which like reference characters refer to corresponding parts in the several figures;

Figure 1 is a front view of a pair of, dies 7 of a heading machine or the like and a frag- 0 separating plate.

mentary portion of its supporting mechanism, with my improved means connected therewith;

Figure 2 is a sectional elevation thereof taken generally upon line 22 of Figure 1;

Figure 3 is a detail sectional view of the" mechanism taken generally upon line 3-3 of Flgure 2;

similar to that shown in Figure 2, but modified slightly inits construction; Figure 5 is a front view of a pair of diessimilar to those shown in Figure 1 with the separating mechanism applied to the underside of the dies; and Figure Gillustrates a modified form of It has heretofore been the practice to separate thedies of an open die header or upsetting machine at the wire feed line by parting pins, separating pins or the like, an

more particular reference to the V illustration of such means being shown in Letters Patent No. 1,104,090, dated July 21, 1914, particularly in Figure 4 thereof, and also in Letters Patent No. 1,108,958, dated September 1, 1914, a heavy fiat spring, not shown in either of the above patents, bearing upon the upper end of each of the parting pins or separating pins, which move in a path at substantially a right angle to the movement of the dies. nism the die cap or other part or parts that support the pins must be machinedv with great care and exactness and each must be in correct alignment with each otherand the groove formed by the angular corner faces of the dies, when the dies are in proximity to the wirefeed line. If the pins are not so arranged, the lower pointed end'thereof will not register with said groove, thus having a tendency to cramp the dies and apply an unequal pressure thereto at different points throughout their length. If this ocminimum separation is at the inner end of the dies a defective feed of the wire results and the end of the wire may abut against the dies and stop the feed.

With the use of such pins the spring pressure upon the end thereof is constant, therefore it requires not only a pressure sufficient to move the dies and cut off the wire but also to resist the pressure of the pin actuating springs, which pressure is constant upon the top of one of the dies during its entire movement. There is no use for this pressure except when the dies are to be separated at the wire feed line, hence more power is necessarily required to actuate the dies. While more powerful mechanism is required to move the dies from the wire feed v line to the upsettingiline, the dies are usu- Figure 4 1s a fragmentary sectional view ally returned by spring pressure, the strength of'which must of necessity also be increased to overcome the needless drag and pressure of the pins.

As the pins are of substantial length the element in which they are mounted must of necessity beof substantial height to provide proper support therefor and this height, as well as the pin operating springs, requires space that can otherwise be advantageously utilized. g

All of the above and other objections of With such mechathe heretofore conventional method for separating the dies are obviated in my improved device, which occupies the minimum amount of not otherwise'required space-,pressure is applied only when the dies are to be separated, the necessity of fine machining of the parts is entirely eliminated, and .in these, and many other ways, produces results that are advantageous and-insure-certainty and efliciency in operation, and with mechanism that is of comparatively simple design.

fHavi-ng more particular reference to; the drawings, i numerals i10 and 211s represent the dies, whichare of the aisual formwith ,corner angular i faces 12 which :unite to 1 form a v sha'ped groove substantially as. shown in Figures '1, --and 3, wherein the id ies'iare i near the $wire-feed line, thisbeil ig coincident with the line22 of Fi'gure 11. a lzpieceofiwire designated 13 is. shown in '?SCtlOI1i:Lt"tlLlS feed: line.

"The bed plate uponwhich the diesareisup iportedyis idesignated l t, and the cap or cover 'over' the top thereof 15.

All of the:mechanism/above described is of a well :known itomnandoperates iiran 'iequally well ;known nianneraanid thereiiore needs {not further description herein.

lTheimea-ns 'forwactuati-ngethe dies is not shown herein fo-rrthe above reason, butthe some: travel: between the wire feed: line and the upsetting line, which latter; line is sdesig- 'anated Z*rrfl7 in Figure 1. Fromthe wire-feed r iline to: the l upsetting line i the dies are posiztively actuated ibynrelatively 'power-iiul-mechacanism to :cutoolf a piece ofithe *wire rod but 1 are usually returned from the arpsettiug-- line by spring mechanism.

Referring now particularly, to Figures 1 to 4, inclusive, the cover 15ais provided-with ia: recess 16: having one angular wall 17 --and "a straight wall 51-8 joined bywaocurve d wall 21,- and within which is a iplate :19 "loosely mounted, which latter ispreferably rounded ateeach =end. v Findwise movement'v ofthis iplatefwithin the reoess'fl16 is; p reventedby the leap 520 "connected T with the cover 15 or other suitable means: as iby a lip 22 formed on! the cover 1-5,::as :sho-wni in Figure :4.

The position of the plate 19 :is shown :by ifu'll lines when the l lies are at rest near the mvire ifeed line, at=whioh1time the upper foundedend ofthe plate engages the curved Ava-11.121 :atthe top iofithe irecess -16 -and the valower rounded: endi is w-ithin the N groove formed by two of themangular faces -12-iof tithe *dies 10 '2 and T11. hen-the parts are "thus arranged. the {dies 10iand- 11 are a-slight distance apart: so iastoia'dmit. a. proper teed POf5tl1e Nl/ll el13 therebetween. When the dies -move from-this position .to the upsetting llinetherplate 1 9 travels ;-therewith until it assumes the position in the recess --16i-sub- ESlEEDtlfilllYrfiSflllOiwinzbydQEOkQILFliHBS in, Fig

A ure 1, where it exerts no influence upon either of the dies. However, when the dies are returned from the upsetting line to the wire feed line and are approximately at the latter line, the upper roundedend of the plate l9 engages the rounded wall 21' of the recess 16 and by fulcruming thereon movesthe lower rounded. end downwardly a limited distance and 'forces'the dies apart, until one face thereof abutsagainst the straight wall 18 of the recess 16, at which time the dies are separated the required distance. Thus my improved die separating mechanism requires a-minianunnamount-of space,; pressure is only applied when required, that is, (when the dies are vat ornearthe vwire-"feed,line, and these and 1 other ways, the 'obj ections to the mechanisms i heretofore. commonly ,utilized forsseparatingthe dies are. eliminated and many obviousadvantages secured.

ilhaveshown in Figures 1, Qand l my improved mechanism as applied to the: topside of the diesibut obviou sly .it will operateequally as well if applied to. the underside thereof shown in Figure 5,101 if desired, it-may be usedupon .both. top .an'd'bottom. If-used upon the .bottomthe plate 19 .is mounted in the bedplate 143 instead. of the cap .or cover 15.

The; ends of the plate 19 may, if desired, be V shaped or otherwise formedas-shown in Figure 6, instead ofroun'de'd as above I described.

There. are :nimor changes and alterations that .-can be ,made within my invention, aside .fromthosesherein suggested,. and 'I would thertforehave it understood that 'I do 'not limitmyself tothe exact construction herein shown and described, but claim all that falls J fairly within a the spirit rand scope oftherappended claims which :do not include .,a structure wherein the plate is pivotally mounted Having described my invention, what 1 claim as new: anddesireto secure by LettersPatentis:

.1. In. combination with dies of :a'. heading machine or the like, means for supporting the same; and means vtor separating said dies, comprising a platelying within a recess in an adjacent. part, andmoved byisai'd dies s05 as to engagev one end of said recess and be wedged between said dies at -a predetermined point a in the movement. thereof.

.2. In combination withdies-ofa'heading ;machinecor the. like, means for -.supporting the same; and -means for .tseparating said idies, comprising a plateilyingwwi'thin, a ,re-

-.cess.-in; an adjacent, part and qmovedibyz said dies soi asto engage .one. ends of ,said recess and be wedged between saiddies:at.a .preodetermined pointiin theimovementthereof; vand ,Jneans for preventing endwise .,move- .iment ofsaid :plate.

.;-.3,;In combination iwith the idles (if a heading machine or thelike DlQ ti 16 bQ- tween two walls toward and away from a wire feed line, one of the walls having a recess therein; a plate movable within said recess during the movement of said dies until the same are approximately at the said wire feed line, when said plate engages one wall of said recess, and is wedged between and separates said dies.

4. In combination with the dies of a heading machine or the like; a recessed member adjacent thereto; said recess having one substantially straight wall; a plate movable within said recess with said dies until the same are approximately at the wire feed line when said plate engages the straight wall of said recess, and is wedged between said dies and separates the same.

5. In combination with the dies of a heading machine or the like; a recessed member adjacent thereto; the recess having a substantially straight wall and another wall at an angle thereto; and a plate movably mounted within said recess and when in contact with said straight wall, one end thereof is between said dies and separates the same.

6. In combination with the dies of a heading machine or the like movable between two walls toward and away from a wire feed line one of the walls having a recess therein a plate movable within said recess during the movement of said dies, until the same are approximately at the said wire feed line, when said plate engages one wall of said recess, and is wedged between and separates said dies, and means for closing the outer end of said recess.

7. In combination with the dies of a heading machine or the like; a recessed member adjacent thereto; said recess having one substantially straight wall; a plate round at both ends movable within said recess with said dies until the same are approximately at the wire feed line when said plate engages the straight wall of said recess, and is wedged between said dies and sparates the same.

8. In combination with the dies, of a heading machine or the like having angular faces on the corners thereof; a member having a recess therein adjacent thereto; and a plate slightly longer than the depth of said recess and movable laterally within the recess by the dies.

9. In combination with the dies, of a heading machine or the like; that move toward and away from a station; a member adjacent thereto having a recess therein of varying depths, the deepest portion of which is substantially in register with said station; a plate movable within said recess by said dies while traveling toward and away from the station the inner end of which projects between said dies when the sdame are at said station and separates the 10. In combination with the dies of a heading machine or the like; a member having a recess therein adjacent to said dies; a plate movable within said recess and having engagement with said dies, one of which engages the end of said plate and moves the same against one wall of said recess and by reason thereof moves the opposite end between said dies and thereby separates the same.

In testimony whereof, I have hereunto affixed my signature.

RICHARD LESTER WILGOX. 

